Arkansas earthquakes

M3.4 earthquake 5 km SSW of Guy, Arkansas

A magnitude 3.4 earthquake struck 5 km SSW of Guy, Arkansas on Sat, Feb 26, 2011, 8:35 AM CST (14:35 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.7 4 km NE of Greenbrier, Arkansas. This one was a foreshock.

Guy forecast More in Arkansas

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 3.4 (mlg), minor
Local time: Sat, Feb 26, 2011, 8:35 AM CST
UTC: 2011-02-26 14:35:02 UTC
Depth: 2.8 km (1.8 mi), shallow
Epicenter: 35.276° N, 92.349° W
Region: Arkansas
Felt reports: 27
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

27 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Strike-slip
Nodal plane 1: Strike 204°, dip 85°, rake 165°
Nodal plane 2: Strike 295°, dip 75°, rake 5°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 0.4 km horizontally, 0.4 km in depth
Magnitude uncertainty: ±0.67
Depth from: From location
Station coverage gap: 54°
Stations used: 16

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and 173 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Arkansas earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm608496 (also filed as nm022611a, usp000hv3s). Read Sun, Sep 27, 2026, 10:44 AM UTC.